Best Substack Communities Newsletters in 2026

NewsletterFIT tracks 7 newsletters that cover Substack communities as a primary topic, 6 of them with posts in the last 90 days. By publicly shown subscriber count, the largest are Za's Market Terminal (14K), The Art of Flash Fiction (12K) and The Fast Track (5K).

Updated Nov 7, 2026 · sorted by publicly shown subscribers · methodology

  1. 1
    Za's Market Terminal14K subscribers

    SubstackSeveral times a week · last post 6 days ago

    From recent posts: Za's Market Terminal publishes weekly market analysis and investment strategy focused on sectors like AI, space, and quantum computing. The publication targets individual investors through daily trade ideas…

    Likely audience: Substack subscribers

  2. 2
    The Art of Flash Fiction 12K subscribers

    SubstackWeekly · last post 5 days ago

    From recent posts: The Art of Flash Fiction publishes critiques, writing prompts, and analyses of short stories for an audience of creative writers and literary enthusiasts. It regularly features workshops, retreats, and deep dives into…

    Likely audience: Flash fiction writers

  3. 3
    The Fast Track5K subscribers

    SubstackSeveral times a week · last post 5 days ago

    From the trusted editors at Travel + Leisure, The Fast Track takes you behind the scenes of T+L to bring you the inside scoop on the travel experiences that matter most, the destinations to have on your radar, and the…

    Likely audience: travel enthusiasts

  4. 4
    Attention and Astonishment—

    SubstackEvery two weeks · last post 25 days ago

    Contemplative notes to link our modern lives with our ancient faith

    Likely audience: book lovers

  5. 5
    It's All About the Words by Claire Holden—

    SubstackMonthly or less · last post 25 days ago

    From recent posts: This Substack publishes short-form essays on film criticism, literary fiction, and personal cultural challenges such as reading the alphabet or celebrating holidays. The content mixes analytical pieces on adaptations…

    Likely audience: Film enthusiasts

  6. 6
    Marilyn’s Substack: Lessons from the Horse’s Mouth—

    SubstackMonthly or less · last post 32 days ago

    My personal Substack shares thoughts, feelings, poetry gleaned from 70+ years of living, never assuming an expert voice.

    Likely audience: Pet owners facing end-of-life decisions

  7. 7
    Substack Type Club—

    Substacklast post Mar 10, 2025

    Building a community of like-minded Substackers who all want to grow their own following, and help each other do the same.

    Likely audience: Community managers

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